Here's another extended scene from the script..(btw im reading it now and the Miranda-Fox scene is about 30 seconds)..

ALFRED (cont’d)
Don’t worry, Master Wayne. Takes a
little time to get back into the
swing of things.Wayne dials his phone.FOX (O.S.)
This is Fox.WAYNE
Remember those ’unusual requests’ I
used to make?FOX (O.S.)
I knew it!Up front, Alfred listens. Concerned.INT. BATCAVE - DAYWayne pushes a button on a hi-tech carbon fiber brace
strapped to his good knee - the brace tones. As Wayne starts
moving his knee, bending, stretching, Alfred puts down a
Thermos.ALFRED
You’ve got the wrong leg, sir.WAYNE
You start with the good limb so it
learns your optimum muscle
patterns.Wayne swaps the brace to his bad knee. Puts his weight on it
- the knee bends, kicks. He sits again. Cautious.
Now we tighten it up.Wayne gingerly pushes a button - the brace starts to shrink
tight to his leg, digging in. Wayne grits his teeth.

__________________"Lets make one thing very clear here - Nolan's films are as faithful an adaptation as there is. It pays homage to its source material, remains true to its characters and above all else places the story first and foremost." - jmc